mirror of https://github.com/PentHertz/srsLTE.git
Added initial Generic DL Phy test
This commit is contained in:
Xavier Arteaga
parent
115244657f
commit
e837788ad4
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@ -20,4 +20,5 @@
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add_subdirectory(asn1)
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add_subdirectory(common)
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add_subdirectory(phy)
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add_subdirectory(upper)
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@ -0,0 +1,27 @@
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#
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# Copyright 2013-2017 Software Radio Systems Limited
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#
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# This file is part of srsLTE
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#
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# srsLTE is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of
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# the License, or (at your option) any later version.
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#
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# srsLTE is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# A copy of the GNU Affero General Public License can be found in
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# the LICENSE file in the top-level directory of this distribution
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# and at http://www.gnu.org/licenses/.
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#
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#######################################################################
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# PHY TESTS
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#######################################################################
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add_executable(phy_dl_test phy_dl_test.c)
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target_link_libraries(phy_dl_test srslte_phy srslte_common srslte_phy ${SEC_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
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add_test(phy_dl_test phy_dl_test)
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@ -0,0 +1,377 @@
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "srslte/srslte.h"
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srslte_cell_t cell = {
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.nof_prb = 100,
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.nof_ports = 1,
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.id = 1,
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.cp = SRSLTE_CP_NORM,
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.phich_resources = SRSLTE_PHICH_R_1,
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.phich_length = SRSLTE_PHICH_NORM
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};
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uint32_t tm = 0;
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srslte_mimo_type_t mimo_type = SRSLTE_MIMO_TYPE_SINGLE_ANTENNA;
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uint32_t sf_idx = 5;
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uint32_t cfi = 3;
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uint32_t nof_rx_ant = 1;
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uint32_t nof_subframes = 10;
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uint16_t rnti = 0x1234;
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bool print_dci_table;
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void usage(char *prog) {
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printf("Usage: %s [cfpndvs]\n", prog);
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printf("\t-c cell id [Default %d]\n", cell.id);
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printf("\t-f cfi [Default %d]\n", cfi);
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printf("\t-p cell.nof_prb [Default %d]\n", cell.nof_prb);
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printf("\t-s number of subframes to simulate [Default %d]\n", nof_subframes);
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printf("\t-d Print DCI table [Default %s]\n", print_dci_table ? "yes" : "no");
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printf("\t-x MIMO Type: single, diversity, cdd, multiplex [Default %s]\n", srslte_mimotype2str(mimo_type));
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printf("\t-v [set srslte_verbose to debug, default none]\n");
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}
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void parse_args(int argc, char **argv) {
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int opt;
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while ((opt = getopt(argc, argv, "cfpndvsx")) != -1) {
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switch (opt) {
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case 'x':
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if (srslte_str2mimotype(argv[optind], &mimo_type)) {
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fprintf(stderr, "'%s' is not a valid MIMO type\n", argv[optind]);
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usage(argv[0]);
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exit(SRSLTE_ERROR);
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}
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if (mimo_type == SRSLTE_MIMO_TYPE_SINGLE_ANTENNA) {
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cell.nof_ports = 1;
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nof_rx_ant = 1;
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tm = 0;
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} else {
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cell.nof_ports = 2;
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nof_rx_ant = 2;
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if (mimo_type == SRSLTE_MIMO_TYPE_TX_DIVERSITY) {
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tm = 2;
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}
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}
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break;
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case 'f':
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cfi = (uint32_t) atoi(argv[optind]);
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break;
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case 'p':
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cell.nof_prb = (uint32_t) atoi(argv[optind]);
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break;
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case 'c':
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cell.id = (uint32_t) atoi(argv[optind]);
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break;
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case 's':
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nof_subframes = (uint32_t) atoi(argv[optind]);
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break;
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case 'd':
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print_dci_table = true;
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break;
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case 'v':
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srslte_verbose++;
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break;
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default:
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usage(argv[0]);
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exit(-1);
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}
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}
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}
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int prbset_num = 1, last_prbset_num = 1;
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int prbset_orig = 0;
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unsigned int
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reverse(register unsigned int x) {
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x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1));
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x = (((x & 0xcccccccc) >> 2) | ((x & 0x33333333) << 2));
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x = (((x & 0xf0f0f0f0) >> 4) | ((x & 0x0f0f0f0f) << 4));
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x = (((x & 0xff00ff00) >> 8) | ((x & 0x00ff00ff) << 8));
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return ((x >> 16) | (x << 16));
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}
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uint32_t prbset_to_bitmask() {
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uint32_t mask = 0;
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int nb = (int) ceilf((float) cell.nof_prb / srslte_ra_type0_P(cell.nof_prb));
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for (int i = 0; i < nb; i++) {
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if (i >= prbset_orig && i < prbset_orig + prbset_num) {
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mask = mask | (0x1 << i);
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}
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}
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return reverse(mask) >> (32 - nb);
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}
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int main(int argc, char **argv) {
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srslte_enb_dl_t enb_dl = {};
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srslte_ue_dl_t ue_dl = {};
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srslte_softbuffer_tx_t *softbuffer_tx[SRSLTE_MAX_TB] = {};
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srslte_softbuffer_rx_t *softbuffer_rx[SRSLTE_MAX_TB] = {};
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uint8_t *data_tx[SRSLTE_MAX_TB] = {};
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uint8_t *data_rx[SRSLTE_MAX_TB] = {};
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uint32_t count_failures = 0;
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int ret = -1;
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parse_args(argc, argv);
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cf_t *signal_buffer[SRSLTE_MAX_PORTS] = {NULL};
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/*
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* Allocate Memory
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*/
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for (int i = 0; i < cell.nof_ports; i++) {
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signal_buffer[i] = srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_PRB(cell.nof_prb));
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if (!signal_buffer[i]) {
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fprintf(stderr, "Error allocating buffer\n");
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goto quit;
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}
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}
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for (int i = 0; i < SRSLTE_MAX_TB; i++) {
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softbuffer_tx[i] = (srslte_softbuffer_tx_t *) calloc(sizeof(srslte_softbuffer_tx_t), 1);
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if (!softbuffer_tx[i]) {
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fprintf(stderr, "Error allocating softbuffer_tx\n");
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goto quit;
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}
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if (srslte_softbuffer_tx_init(softbuffer_tx[i], cell.nof_prb)) {
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fprintf(stderr, "Error initiating softbuffer_tx\n");
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goto quit;
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}
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softbuffer_rx[i] = (srslte_softbuffer_rx_t *) calloc(sizeof(srslte_softbuffer_rx_t), 1);
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if (!softbuffer_rx[i]) {
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fprintf(stderr, "Error allocating softbuffer_rx\n");
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goto quit;
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}
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if (srslte_softbuffer_rx_init(softbuffer_rx[i], cell.nof_prb)) {
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fprintf(stderr, "Error initiating softbuffer_rx\n");
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goto quit;
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}
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data_tx[i] = srslte_vec_malloc(sizeof(uint8_t) * 150000);
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if (!data_tx[i]) {
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fprintf(stderr, "Error allocating data tx\n");
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goto quit;
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}
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data_rx[i] = srslte_vec_malloc(sizeof(uint8_t) * 150000);
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if (!data_rx[i]) {
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fprintf(stderr, "Error allocating data tx\n");
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goto quit;
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}
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}
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/*
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* Initialise eNb
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*/
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if (srslte_enb_dl_init(&enb_dl, signal_buffer, cell.nof_prb)) {
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fprintf(stderr, "Error initiating eNb downlink\n");
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goto quit;
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}
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if (srslte_enb_dl_set_cell(&enb_dl, cell)) {
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fprintf(stderr, "Error setting eNb DL cell\n");
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goto quit;
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}
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srslte_enb_dl_set_cfi(&enb_dl, cfi);
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srslte_enb_dl_set_power_allocation(&enb_dl, 0.0f, 0.0f); /* Default: none */
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/*
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* Initialise UE
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*/
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if (srslte_ue_dl_init(&ue_dl, signal_buffer, cell.nof_prb, nof_rx_ant)) {
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fprintf(stderr, "Error initiating UE downlink\n");
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goto quit;
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}
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if (srslte_ue_dl_set_cell(&ue_dl, cell)) {
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fprintf(stderr, "Error setting UE downlink cell\n");
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goto quit;
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}
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srslte_ue_dl_set_rnti(&ue_dl, rnti);
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/*
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* Loop
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*/
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for (uint32_t sf_idx = 0; sf_idx < nof_subframes; sf_idx++) {
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bool acks[SRSLTE_MAX_TB] = {};
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/* Run eNodeB */
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srslte_enb_dl_clear_sf(&enb_dl);
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srslte_enb_dl_put_base(&enb_dl, sf_idx);
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srslte_ra_dl_dci_t dci = {};
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srslte_dci_format_t dci_format = SRSLTE_DCI_FORMAT1A;
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srslte_ra_dl_grant_t grant = {};
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/* Pupulate TB Common */
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dci.harq_process = 0;
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/* Pupulate TB0 */
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dci.mcs_idx = 0;
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dci.ndi = 0;
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dci.rv_idx = 0;
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dci.tb_en[0] = true;
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if (mimo_type == SRSLTE_MIMO_TYPE_CDD || mimo_type == SRSLTE_MIMO_TYPE_SPATIAL_MULTIPLEX) {
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dci_format = SRSLTE_DCI_FORMAT2B;
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/* Pupulate TB1 */
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dci.mcs_idx_1 = 0;
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dci.ndi_1 = 0;
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dci.rv_idx_1 = 0;
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dci.tb_en[1] = true;
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/* Pupulate Allocation */
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dci.alloc_type = SRSLTE_RA_ALLOC_TYPE0;
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dci.alloc_type = SRSLTE_RA_ALLOC_TYPE0;
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dci.type0_alloc.rbg_bitmask = prbset_to_bitmask();
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} else {
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dci_format = SRSLTE_DCI_FORMAT1A;
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dci.alloc_type = SRSLTE_RA_ALLOC_TYPE2;
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dci.type2_alloc.riv = 0;
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dci.type2_alloc.L_crb = 4;
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dci.type2_alloc.RB_start = 0;
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dci.type2_alloc.n_prb1a = 1;
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dci.type2_alloc.n_gap = 0;
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dci.type2_alloc.mode = 0;
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}
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dci.dci_is_1a = (dci_format == SRSLTE_DCI_FORMAT1A);
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dci.dci_is_1c = (dci_format == SRSLTE_DCI_FORMAT1C);
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srslte_ra_dl_dci_to_grant(&dci, cell.nof_prb, rnti, &grant);
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srslte_dci_location_t location = {
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.ncce = 0,
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.L = 2
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};
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for (int t = 0; t < SRSLTE_RA_DL_GRANT_NOF_TB(&grant); t++) {
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for (int i = 0; i < grant.mcs->tbs; i++) {
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data_tx[t][i] = (uint8_t) (rand() & 0xff);
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}
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}
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if (srslte_enb_dl_put_pdcch_dl(&enb_dl,
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&dci,
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dci_format,
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location,
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rnti,
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sf_idx % 10) < 0) {
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fprintf(stderr, "Error putting PDCCH\n");
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goto quit;
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}
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if (srslte_enb_dl_put_pdsch(&enb_dl,
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&grant,
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softbuffer_tx,
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rnti,
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(int[SRSLTE_MAX_CODEWORDS]) {dci.rv_idx, dci.rv_idx_1},
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sf_idx % 10,
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data_tx,
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mimo_type) < 0) {
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fprintf(stderr, "Error putting PDSCH\n");
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goto quit;
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}
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srslte_enb_dl_gen_signal(&enb_dl);
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/* Run UE */
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int n = srslte_ue_dl_decode(&ue_dl, data_rx, tm, sf_idx, acks);
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if (n < 0) {
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fprintf(stderr, "Error decoding PDSCH\n");
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goto quit;
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}
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for (int i = 0; i < SRSLTE_RA_DL_GRANT_NOF_TB(&grant); i++) {
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if (!acks[i]) {
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INFO("UE Failed decoding subframe %d\n", sf_idx);
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count_failures++;
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}
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}
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}
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printf("Finished! The UE failed decoding %d of %d.\n", count_failures, nof_subframes);
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if (!count_failures) {
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ret = SRSLTE_SUCCESS;
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}
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quit:
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srslte_enb_dl_free(&enb_dl);
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srslte_ue_dl_free(&ue_dl);
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for (
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int i = 0;
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i < cell.
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nof_ports;
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i++) {
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if (signal_buffer[i]) {
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free(signal_buffer[i]);
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}
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}
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for (
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int i = 0;
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i < SRSLTE_MAX_TB; i++) {
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if (softbuffer_tx[i]) {
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srslte_softbuffer_tx_free(softbuffer_tx[i]);
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free(softbuffer_tx[i]);
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}
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if (softbuffer_rx[i]) {
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srslte_softbuffer_rx_free(softbuffer_rx[i]);
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free(softbuffer_rx[i]);
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}
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if (data_tx[i]) {
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free(data_tx[i]);
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}
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if (data_rx[i]) {
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free(data_rx[i]);
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}
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}
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if (ret) {
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printf("Error\n");
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} else {
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printf("Ok\n");
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}
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srslte_dft_exit();
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exit(ret);
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}
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